Question

Questions #7 refers to the following: Dr. Smith believes that exposing babies and children to classical music with raise their intelligence quotient (IQ). To test this idea, he administers IQ tests to 10 children of his friends who listen to classical music on a regular basis. He then compares the results from these 10 kids to the national average, which is 100. The results are below: T-Test T N One-Sample Statistics Mean Std. Deviation 10113.5000 14.3469 Std. Error Mean 4 .5369 T One-Sample Test Test Value = 100 df 9 Sig. (2-tailed) .016 Mean Difference 1 3.5000 95% Confidence interval of the Difference Lower Upper 3.2369 23.7631 2. 976 a. What is the dependent variable? (1 pt) b. What is the null hypothesis? (1 pt) c. What is the alternative hypothesis? (1 pt) d. What are the degrees of freedom? (1 pt) e. What is t-obtained? (1 pt)

Answer 1

Cinen Гоо n-10 ū-113-50 so - 14.3469 t - 2.876 dag - 13.50 significance (2 tarles) - 0.116 Answer (9) Dependent priable ? Il of those to student (babies and children) who are exposed to classical music. Answer (6) Null bypothesis - 10 f to childrens equals to too. Mon - 4 le. Hon - 100 Answer- ( Alternative bypothesis ; 20 of sample to children is bisher than netionad average. il. 4 T T wo

Answer (d) : Degree of freedom - 9 Answer-le) 4-obtaines. The calculates nalue of from comple values statistic tabtainus & 2.976 Answer- (8) 2-tailed p-value - 006 atrs wer- lg C -tailed p-value = 0.007775 berh : Yes the vals lappathesis startet be regenten as proslues are significant at &50. 05 sach &-0. Of thoth level of sipriticance.